We divide 870207 by 45
We want to divide 870207 by 45.

Let's proceed to step 1:
The number 45 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 45

Going ahead to step 2:
When dividing 87 by 45, we get 1 with a remainder of 42.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 45 away from 87, we end up with 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 45

Advancing to step 3:
45 goes into 420 9 times with a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 19.0
The remainder is 15 after subtracting 405 from 420.
Grab the next digit (2) from the dividend, add it to 15, then carry on: 152 / 45

Let's proceed to step 4:
152 divided by 45 is 3 with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 193.0
Subtracting 135 from 152 leaves us with 17.
Bring next digit (0) of the dividend behind the 17 and repeat the process: 170 / 45

Advancing to step 5:
170 divided by 45 is 3 with a remainder of 35.
Put 3 as the next digit of the answer. 
Result so far: 1933.0
If we take 135 away from 170, we end up with 35.
Take the next digit (7) from the dividend and append it to 35, then repeat: 357 / 45

Moving on to step 6:
357 divided by 45 is 7 with a remainder of 42.
Record the quotient 7 as the next digit in the result. 
Result so far: 19337.0
If we subtract 315 from 357, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 7:
When dividing 420 by 45, we get 9 with a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 19337.9
Deduct 405 from 420 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 8:
45 can be fit into 150 3 times, resulting in a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 19337.93
Subtract 135 from 150 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
45 goes into 150 3 times with a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 19337.933
If we take 135 away from 150, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

After the division, we end up with 19337.933 and a remainder of 0.0015.